For years we have been told that encouraging a child’s self-respect is important to his or her success in life. But child experts are now learning that too much praise can lead to the opposite effect. Praise-sholic kids  who expect it at every turn may become teens who seek to same kind of approval from friends when asked if they want to go in the backseat of the car.

The implication(含义) of saying “You are the prettiest girl in class,” or talking about the goals she succeed but not her overall effort, is that you love her only when she looks the best, scores she highest, achieves the most. And this carries over to the classroom.

Social psychologist Carrol Dweck, PhD, tested the effects of overpraise on 400 fifth graders while she was at Columbia University. She found that kids praised for “trying hard” did better on tests and were more likely to take on difficult assignments than those praised for being “smart”.

“Praising attributes(品质) or abilities makes a false promise that success will come to you because you have that quality, and it devalues effort, so children are afraid to take on challenges, ” says Dweck, now at Stanford University, “They figure they’s better quit while they’re ahead.”

The underlined words “Praise-sholic kids” refers to kids who are ______.

   A. tired of being praised             B. worthy of being praised

   C. very proud of being praised        D. extremely fond of being praised

The author quoted(引用) Dr. Dweck’s words in the last paragraph in order to make the article

_____. 

A. better-known      B. better-organized    C. more percussive   D. more interesting

We can infer from the passage that _____.

   A. praise for efforts should be more encouraged

   B. praise for results works better than praise for efforts

   C. praising a child’s achievements benefits his or her success in life

   D. praising a child’s abilities encourage him or her to take on challenges

Zinc(锌) is one of about 20 elements necessary for good health. It is present in the body in a very small amount but makes it possible for important chemical actions to be carried out in cells. Scientists are just beginning to discover how zinc and other elements work.

Researchers first studied zinc as a way to speed recovery. Dr. Waltor Powys formerly with the United States Air Force noted that the laboratory animals recovered faster when some matters were added to their food. One of these matters was zinc. Dr. Powys later tested the zinc treatment on an American airman recovering from medical operations. The airman who received zinc sulphate(硫酸盐) recovered in half of the usual time. Other doctors studied persons who had a number of strange disorders. The doctors learned that all of these problems were caused by lack of zinc in the body. They treated these disorders successfully by giving the patients zinc sulphate.

The amount of zinc in the body can be found by examining blood and hair. A lack of this important element is not uncommon among people in both industrial and developing countries. Zinc is found in most high protein(蛋白质) foods such as meat, milk, fish and eggs. It is also found in whole grains. But many people do not eat enough of these food. Food markets should add these elements so that more people could get needed amount of these necessary matters.

Which of the following statements is true?

A. Scientists found how zinc works a long time ago.

B. People need a large amount of zinc to be healthy.

C. Zinc allows important chemical actions to take place in cells.

D. Zinc must be used in the course of medical operation.

One of the results from the study of zinc is that _______.

A. there’s only a little zinc in the human body

B. food rich in protein contains more zinc

C. some physical problems are caused by lack of zinc

D. any patient who receives zinc sulphate gets well immediately

The best title for the passage may be _______.

A. A New Discovery                                 B. Zinc and Health

C. How Zinc Works                                 D. Add Zinc to Your Food

The average person learns most of the 30 000~40 000 words whose meanings he or she recognizes by hearing them or getting familiar with them in the context or simply absorbing them without conscious(意识到的) effort. The best way to build a good vocabulary, therefore, is to read a great deal and to participate in a lot of good talks. There are relatively few words that we learn permanently(永久的)by purposefully referring to dictionaries or keeping word lists. However, even those extra few are of value, and no one will make a mistake by working on developing a larger vocabulary. Here are some suggestions of how to do it.

Read plenty of good books. When you come across a new word, or a new meaning of an old word, stop and see if you can understand it from its context. If you can't, and if you can manage without interrupting the thought of the book too much, look it up in a dictionary or ask somebody and then repeat its meaning to yourself a couple of times. If you are really conscientious(认真的), write the word and its meaning in a personal vocabulary list — preferably using it in a sentence, or you can keep a special vocabulary notebook. Go over the list from time to time. Further, try to use a new word in writing or conversation a few times over the next several days.

Listen to good talks and be alert to new words you hear or to new meanings of words you already know. Then treat them just as you treat the new words you read.

Learn and be alert to the parts of words: prefixes, suffixes and roots. Knowing them enables you to make intelligent guesses about the meaning of words.

If you are studying a foreign language, be alert to words in that language which relate to words in English. English has inherited(继承) or borrowed much of its vocabulary of 500 000~600 000 words from Latin, Greek, French, Spanish and German.

When you meet a new word in reading, what should you do?

A. Guess its meaning.                       B. Ask somebody.

C. Look it up in a dictionary.                     D. All of the above.

According to this passage, the best way to build a good vocabulary is _______.

A. to remember a lot                          B. to read a great deal

C. to take part in a lot of good talks            D. both B and C

The phrase “be alert to” in the third paragraph may best be replaced by “_______”.

A. look at                                        B. pay attention to 

C. write down                                  D. learn by heart

In the fourth paragraph, the word “them” refers to _______.

A. the parts of words                          B. prefixes

C. suffixes                                         D. roots

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